Hubert, Philip Gengembre, 1852-1925 · New York, C. Scribner's Sons · leaf 271
r new lamps burned well. Then began themost exciting: and most exhaustive series of ex- o periments ever undertaken by an American phys- 250 INVENTORS icist. For five days Edison remained day andnight at the laboratory, sleeping- only when hisassistants took his place at whatever was goingon. The… … Edisons Menlo Park Electric Locomotive (1880). eyes grew weak studying the brilliant glow ofthe carbon filament. At the end of the five dayshe took to his bed, worn out with excitement andsick with disappointment. During the last twodays and nights he ate nothing. He could notsleep, for the moment…
Inventors
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